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An NODC evaluation of paired N3S and NØE NOMAD buoy surface observations : Project SEA SENSE
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1972
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Series: Progress Report ; P-100
[PDF-9.96 MB]
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Description:Three-hourly instantaneous, independent surface observations of air-and seasurface temperatures, pressure, and wind direction and speed from the N3S and N0E NOMAD buoys are paired according to date-time group and evaluated. The distance of 28 n.mi. separating the buoys in the central Gulf of Mexico and the observing-time difference of about 20 minutes in January and 1 hour in July were considered to be operationally insignificant. The differences of the paired observations, put in frequency distribution form for January and July of 1968, showed dispersions of several types with small and large variances. The paired observations of surface pressure and wind speed showed platykurtic dispersions with excellent uniformity for the 2 months. Pressures were generally low for each buoy, and surface wind speeds from both buoys appeared reliable. In January, the paired differences in air temperatures were very slight. Problems with N0E in January caused large sea-surface temperature (SST) differences with N3S, while in July, no differences between N3S and N0E were available because no SST observations .were reported by N0E. Wind direction differences in January were normally dispersed, with wind directions of N3S being more clockwise than those of N0E. Because unreliable wind directions were reported by N3S in July, the comparisons with N0E were extreme.
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Rights Information:CC0 Public Domain
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